Machine for tooling lithographic surfaces.



G. A. G. PFANNE.

APPLICATION FILED MAY 10, 1912.

Patented Feb. 4, 1913.

8 SHEETS-SHEET l.

MAGHlNE FOR TOOLING LITHOGRAPHIG SURFACES.

g WITNESSES C. A. G. PPANNE. MACHINE FOR TOOLING LITHOGRAPHIC SURFACES.

APPLI'EATION FILED MAY 10 19x2.

Patented Feb. 4, 1913.

8 SHEETS-SHEET Z,

w Q A if Q mw. wa *Q MW S N% um F1 INVENTO/i WITNESSES C. A. G. P'FANNE. MACHINE FOR TOOLING LITHOGRAPHIO SURFACES.

APPLICATION FILED MAY 10, 1912.

Patented Feb. 4, 1913.

B SHEETS-SHEET 3.

WITNESSES v f %M- 0. A. G. PFANNE. MACHINE FOB. TOOLING LITHOGRAPHIG SURFACES.

APPLICATION FILED MAY 10, 1912.

1,052,01 1. Patented Feb. 4, 1913.

8 SHEBTS SHBET 4.

WITNESSES 0. A. G. PFANNE. MACHINE FOR TOOLING LITH'OGEAPHIG SURFACES.

APPLICATION FILED MAY 10, 1912. 1,052,01 1. Patented Feb. 4, 1913.

8 SHEETS-SHEET 5.

Du L A. .i U O ,liz i :25; W AL, kw R Q a x R. & W4 //MM Z2 a W! I? 7 m I I |1...:fl.l.|ii.li. IL; @M fivwww in 3 N 3? I ATTORNEY G. A. G. PPANNE.

MACHINE FOR TOOLING LITHOGRAPHIO SURFACES.

APPLICATION FILED MAY 10, 1912. 1,052,01 1. Patentqd Feb. 4, 1913.

8 SHEETS-SHEET 6.

A 1 I, I1 I m a Q6 a INI/NTOI? WITNESSES 0. A. G. PFANNE.

MACHINE FOR TOOLING LITHOGRAPHIG SURFACES.

APPLICATION FILED MAY 10, 1912.- 1,052,01 1 Patented Feb. 4, 1913.

8 SHEETSSHBET 7.

C. A. G. PPANNE.

MACHINE FOR TOOLING LITHOGRAPHIG SURFACES.

APPLICATION FILED MAY 10, 1912.

1,052,01 1 Patented Feb. 4, 1913.

8 SHEETSSHEET 8.

WITNESSES CARL A. G. PFANNE, 01E HOBOKEN, NEW JERSEY.

MACHINE FOR TOOLING LIIHQGIBAPHIC SURFACES.

Specification of Letters Patent.

Patented Feb. e, 1W3.

Appli ation filed Her 10, 1912. ser al n eeeeeo.

To all whom e't may concern.

Be it known that I, CAR A. G. PFANENE, a citizen of the United States, and a resident of Hoboken, county of Hudson, and State of New Jersey, have invented an Improved Machine for Tooling Lithographic Surfaces, of which the following is a specification.

This invention relates to an improved machine for tooling lithographic surfaces, whether such surfaces be of stone, zinc, aluminum or other character.

The invention seeks to provide a machine whereby the required grain may be formed on such surfaces and whereby a pattern previously developed on the surface may be removed before graining it, and whereby the operation may be conducted with increased convenience, despatch and accuracy.

The invention consists of the various features and combinations thereof hereinafter pointed out.

The drawings forming part of this specification, and wherein like reference numerals designate corresponding parts in the several figures, show the invention in one of its various embodiments. this being the form prefcrrcd.

Figure l is a side elevation of the machine, the bed being shown in central vertical section. Fig. 2 is a front elevation looking to ward the right of Fig. 1. Fig. 3 is a side elevation of the rear carriage in its place on the frame of the machine. Fig. 4 is a side elevation. partly in central vertical section, of the roar carriage. Fig. 5 is a side elevation of the front portion of the machine, the carriage being partlv in central sectional elevation and the bed being in central sectional elevation. Fig. 6 is a plan view of the rear carriage and the parts carried thereby. Fig. 7 is a plan view of the frame of one of the carria es. Fig. 8 is a side View of said frame. 9 is a plan view showing the relation of the tools and the means for driving them. Fig. 10 is a side elevation oi the gearingior the rotating tools. Fig. 11 is a plan view of the rotating tool-car- 13 is a detail view, partly in section, of

one of the grinders. Fig. 14. is a similar view of one of the cutters. Fig. 15 is a side elevation of the clutch mechanism and its associated parts, partly in section on line 15-15 of Fig. 3. Fig. 16 is a side elevation partly in section of said clutch. Fig. 17 is a plan view, partly in section, of part of the bed plate, and Fig. 18 is a sectional elem tion of the flexible driving connection for a tool-carriage.

Referring now more particularly to the drawings, A. is the main frame of the machine having on one side a flat track rail 1 and on the other side the V-shaped track rail 2 extending throughout the length of the main frame.

3 and i are two racks bolted to the sides of the main frame and extending from end to end thereof. Traveling on the track rails 1 and 2 are two separately movable carriages B and C. The carriage B carries the grainers and the carriage C carries the cutters for operating upon the stone 7. This stone rests upon a bed plate 8 carried by the bed frame 9. The bed plate 8 rests upon balls 10 which are supported on the bed frame 9 and held in place by a rectangular frame 11 provided with perforations to receive the balls. Provision is made for imparting movement to the bed plate 8 in its own plane. Such movement is preferably of an oscillatory or gyratory character. For this purpose the bed frame is provided with two vertical shafts 12 and 13, centrally locatcd at the front and rear, on the lower ends of which are fixed beveled gear wheels 14 and 15 meshing with corresponding beveled near wheels 16 and 17 fixed to the shaft 18. This shaft is supported in brackets 31; and 32 projecting from the bed frame and is driven by suitable means such as the sprocket chain 19 geared to the main driving shaft 20 which is driven by the belt pulley 21. The upper ends of the shafts 12 and 13 are provided with eccentrics 22 and 23. The eccentric 22 works in a bushing 24 which fits tight in a recess on the under side of the bed plate 8. The eccentric 23 works in a rectangular box 25 which fits in a rectangular elongated recess 26 formed in the lower side of the bed plate. This box 25 does not eccentric 97 encircled by an eccentric strap 98 having an arm 99 pivoted on a crossbar 100 secured to the track bars 5 and 6. By

thisarrangement when the shaft 74' and the gear 7 5 are rotated the eccentric 97 and cocentric strap 98 impart a slight lateral movement to the casting 70 and the toolcarrier, the casting 70 traveling to and fro on the ball bearings 72. This lateral movement does not interfere with the proper working of the train of driving gears from the gear wheel 75 to the main shaft because the shaft 77 and its gears and also the hearin 82 of gear 80 are supported by and move laterally with the casting '70, and the shaft81, which carries the gear wheel 80, is made flexible by its universal joints. This shaft 81 is shown in detail in Fig. 18. Integral with the gear 80 is a short section of shaft 101 which fits in a recess otthe clutch i iece 102 and is held there by a pin 103. T e lower side of the piece 102 is provided with two clutch fingers 104 which partly surround a ball 105, fitting in a groove in the ball. 106 is .a companion clutch piece similar to the piece 102 and also fitting in a groove in the ball at right angles to theother groove. it is centrally bored to receive the shank, having a key, of the clutch piece 107 which is connected with the clutch piece 108 by the ball 109. The piece 108 is made fast to the shaft of gear 84 by a pin similar to pin 103.

The carriages B and C are arranged to be driven lengthwise of the frame of the machine so as to be brought into and out of operative position with reference to the stone 7. 1n the mechanism for this purpose as shown in the drawings, the main shaft 20 is provided with a groove 110 extending from end to end thereof. Carried'on this shaft is a worm 111, having a key to fit said groove, and adapted to slide onthe shaft and turn therewith. This worm is located between the two arms or forks 112 and 113 which surround the shaft and form a part of the bracket 1111 fixed on the side of the frame The worm 111 meshes with the worm wheel 115 carried on the shaft 4 1. This worm wheel is loose on its shaft but is provided with a clutch whereby it may be locked thereon. When so locked, the rotation of the main shaft 20 and the worm 111 rotates the worm wheel 115, thereby rotating the shaft 4-1 and with it the gear wheel 45. Gear wheels =15 and 43 are respectively in mesh with sers 130 and 129 secured on cross shaft 124 which is carried in brackets on the rear of frame Thus. the rotation of shaft 44- turns the gear wheels and =13 and causes them to travel on racks e and 3 to propel the carriage. ln this movement the carriage is maintained in proper position during its movement by he V-shaped rail 2 and the corresponding wheels 39 and 41. As the carriage travels, the bracket 114 causes the worm 111 to slide with it onthe mainshaft, thereby keeping the worm in gear with the worm wheel 115.. This worm wheel 115 may be disconnected from the shaft 4% by operating the clutch level-116 which is pivoted at its lower end between extensions of the forks 112 and 113. in engagement with the clutch member 117 which is keyed on the shaft 4:4 and is adapted to be moved into and out of clutching engagement with the worm 115 whose hub surrounds the hub of gear wheel as which ,is'

fast on the shaft 44. lVhen the clutch members are separated b the lever 116, the worm wheel 115 runs ree. When the clutch members are brought into engagement with each other by the operation of clutch lever 116, then the worm wheel-115 is locked on the shaft 14 so that the latter and its gear wheel 45 are rotated by therotation of the driving shaft 20.

Gear 85 is keyed on the shaft 20 so as to turn therewith and be capable of sliding thereon in thcsame way as has heen described with reference to the worm 111. This gear 85 has a collar 118 provided'with a groove. This collar fits loosely on the sleeve 119 carried by the bracket 11% and surrounding the shaft 20. The gear 85 is arranged to be connected with and disconnected from the sleeve 119 by the fork 120 pivoted on said sleeve. When the fork is in engagement with the groove, the gear 85 is made to travel lengthwise on the shaft 20 with the carriage B, and the rotation of shaft 20 to propel the carriage simultaneously operates the tool-carrier through gears 85, 84:, etc. By disconnecting the fork 120 from gear 85 and sliding this ear backward, the carriage may be prope led with-' out operating the tool-carrier. It may be desirable to do this in running the carriage forward into operating position or in running it backward after its work has been finished. The carriage B is provided with a hopper 121 to contain sand which may be fed through the discharge pipe 122 on to the surface of the work to assist in the grainin" operation. The carriage B is also rovided with a 'rotary brush 123 supporte in bearings on brackets 124 and driven by a sprocket chain 125 from the wheel 41. This brush preferably consists of alternate sections of felt and bristles. The brush is adjust-able in its brackets by means of the adjusting screws 126. In some cases it is desirable to disconnect the carriage from the main shaft 20 and to propel the carriage b hand. For this purpose the shaft 127 is provided with a crank 128. When the clutch lever 116 is thrown to disconnect the The clutch lever 11b is.

toohs shown, are designeci to grind or this inneranesns ot ernnh Witt propel the carriage.

In the eerriege C the operating tools of sonoevrhet chtterent character from toots or shinning plates in in cnrri These plates 94 operate to L the tithogrnphio snrltnee. in carriage C the cut thesurtece tor the purpose out leveling it endt removing e11 traces of any pattern that rnevheveheen previously developed thereon. tine oi? tools for carriage C is shovvn in- Fig. 13. As there shovvn, the toot eorn o ises a plate 131 similar in shape to the "pinto 9t but provided with cutting or shroieting; points 132 which he made of esrhon, They are seijustehie in the piste 131 hy moons of screws 133.

in the operntion ot the innchine, the can t? they he run to n position over stone end toots epphett with the reqnireci pressure ripen the snrtece ot the stone toy nohnstnient'ot the hnnetvvheei ee. The tion of the tools is to out into and remove es nnich the stone as may he desired, the stone being groom! to exact ievet it not nirenet in this conetition. When tonnet convenient, the driving; Wheeis or the eerringe may he etisconnectert the shntit fit]? nnct csrriege moved heehvteret end torrvsrtt over the stone or other snrtnoe hy operating: the crnnh 1% After the carriage C hes done its work, it may he moved. for- Wnrct he vonti the stone end' the carriage B brought torwnrit to perform tooling onersit-ion, the frame ot' the rnnchine heing suttieientty tong to permit the carriage Q to he moved. torwerci oz? and heyonti the stone. the carriages and t1 rne v he rnn hsohivnrqt to their initini posit-ion hnoh ot the stone hv reversing the t lireetion of the hett which operntes the driving she-it the (Bo-triage C may he provided with pnennistie or suction cleaner having s pine oonneotion 135 to e snitnhte pomp. By the rnnterini remoreet trons the stone or her surface man; he iinnietiisteiy cei'riedt error. The eerringe may he sirniteriy provided it desired.

W'het is etnirnedt enct ctesireti to he secnre'ti hy Letters Potent is:-

t. in n machine tor toohng tithogrnphie snrtnoes the cornhinntion of n main frame; e hetii tor the Work; menn for importing movement to the hoot in its own nione; e trnch-Wey on the inein endt e tootczirriegre on said trsch-rvny, provides with o rotnting toot-enrrier, amt oriented to trevei thereon. into snct out ot operative retention with snie't nest, and means separate from the hert tor rotating sairhtool-corrier.

2. tn 2 machine for tooling iithogrziphic snrt'sees, the combination of :1 main frame; a hett tor the work; means for imparting no its own phtne; track-Way on I. inrne; n tootonrriege on sniti trnetr- "my, provident with it rotating toot-carrier oetjnstrihle rehttive to the Work, anti adapted to trevet thereon into and out of operative retetion "with snid bed; and means separat from the rotating said tool-enrrier.

3. a machine tor toohng lithographic surfaces, the combination oi inei i s heci tor the work; trnch-wev no inein frame; and e toot-cerringe on seict trach- Wey, provided with e rotzitingg nnet oseiiinting toot-csrrier nctjustehie relative to the Wort: and oriented to trnvet into and out of operative rotation with heri.

:1 machine for tooiing tithogrn ohio snrinces, the combination of :1 main trsine; heat -tor the Worh; means for importing movement the hedt in its own one; o trnch'vvny on the resin trnrne; entt vertieeitv ndjnstehte tooi-enrringe on seid tenchivny, provided with n rotating tooi-eerrier having phireiity of rotating toois, nntt nciapteci to trnvei thereon into end out of operative rotation with said heft, end. moons separate from the hoot for rotating sit-id tootonrrier.

5. hi it machine for tooiing iithogrn ghie surfaces the eomhinetion n innin the; s heat tor the work; means :tor movement to the heat in its own piene; n track-We on the main frame; and n tootcerriege on said tract-otte provided with e toot-corner heving n ptnmiit v of separately moving t-oois end ptett to vet thereon int-o snotont of opeietive rehu on with said hoot; nnct menns sennrete "from the hert tor rotating saint toot-carrier.

in it machine for tooling iithogrephio snrtnoes. the combination 0t 2t main frame; heti tor the WOIFK; trnetnivey on the resin "tnrine; enrt e toot-cerriege on sent trnckoriented to trn'vet thereon into and ont of operative rotstion with Sine heist, snict toot oerriege heing provided with e rotating anti oseitteting tooi-cerrier heving' thereon at phiretity ot seperoteiy moving toois.

'2'. in. machine for tooiing" hthog'rnphic snrteces, the combination of s resin frenie; tied for the W0lh;,t trnoh-way on the rennin trerne; e toot-corriege on sni trecht-vvny adopted to trnvet thereon into end out of operative retntion with seidi hed; a driving shntt extending" tengthvvise ot the rennin frame and csrriett in hearings on sniot rnein heme; and means connecting snidt shngtt nnit eerrisge snot traveling with the esrringo whereby the eerringe may he propelled by the rotation 0t strict shntt, sniet inenns including s gear member keyed to and iticting on the shaft. meeting gear member carried on said ezii'risgo erni a chitch for connecting; and disconnecting seidt gear ineinhers.

movement to heat IOU a a bed for the work; means for imparting 8. In a machine for tooling lithographic surfaces, the combination of a main frame; a bed for the work; a track-way on the main frame; a tool-carriage on said track-way adapted to travel thereon into and out of operative relation with said bed; a rotating tool-carrier on the tool-carriage rack bars extending lengthwise of said frame; gear wheels carried by said carriage and engaging said rack bars; a driving shaft; means for connecting said shaft and gear wheels for propelling the carriage; and meansfor operatively connecting the tool-carrier with said shaft.

9. In a machine for tooling lithographic surfaces, the combination of a main frame; a bed for the work; a track-way on the main frame; a tool-carriage on said track-way adapted to travel thereon into and out of operative relation with said bed; a driving shaft extending parallel with said trackway; a driving gear carried on said shaft and arranged to turn with the shaft and slide with the carriage on the shaft; driving wheels on said carriage; and means connecting said driving wheels with said driving gear for propelling the carriage.

10. In a machme for tooling lithographic surfaces, the combination of a main frame; abed forthe work; a traclnway on the main frame; a tool-carriage on said track-way adapted to travel thereon into and out of operative relation with said bed; a rotating tool-carrier on the tool-carriage; a driving shaft; means for operatively connecting said shaft and carriage to propel the carriage; and means for operatively connecting said shaft and tool-carrier for rotating the toolcarrier.

11.. in a machine for tooling lithographic surfaces, the combination of a main frame; a bed for the work; a track-way on the main frame; a tool-carriage on said track-way adapted to travel thereon into and out of operative relation with said bed; a driving shaft extending parallel with said track-may and carried in bearings stationed on the main frame; a driving-worm carried on said shaft and arran ed to turn-with the shaft and slide with t e carriage on the shaft; a worm wheel on the carriage meshing with said worm; and a clutch on the carriage for connecting and disconnecting said worm and worm wheel. 1

12. In a machine for tooling lithographic surfaces, the combination of a main frame;

movement to the bed in its own plane; a

track-way oncthe main frame; a tool-cars riage on said track-way, provided with a rotating tool-carrier, and adapted to travel thereon into and out .of operative relation with said bed; a driving shaft carried in gearing connecting said shaft and toolcarrier.

18. In a machine for tooling lithographic surfaces, the combination of a main frame; a bed for the work; a track-way onthe main frame; a tool-carriage on said track-way adapted to travel thereon into and out of operative relation with said bed; a toolcarrier movable on the tool-carriage; a driving shaft extending parallel with said trackway and carried in" bearings mounted on the main frame; a driving gear carried on said shaft and arranged to turn with the shaft and slide with the carriage on the shaft; driving wheels on said carriage; means connecting said driving wheels with said driving gear; and gearing connecting said shaft and tool-carrier.

14. In a machine for tooling surfaces, the combination of a tool-carriage provided with supporting wheels for the travel of the carriage; a tool-carrier supported by and having an operative movement independent of the movement of said tool-carriage; a shaft mounted in fixed bearings; and means for operating the tool-carrier from said shaft independent of the travel of the toolcarria c. v

15. n a tool-carriage for tooling lithographic surfaces, the combination of a carriage main frame; a rotating tool-carrier supported by and within said main frame and having an upright shaft and a plurality of separate tools arranged to rotate in said tool-carrier; and means for oscillating said tool-carrier.

, 16. In a tool-carriage for toolingsurtaces, thecombmation of a carriage mam frame; a

rotating tool-carrier supported by and within said main frame and having an upright shaft; a hub supportin said shaft and itself supported by and mova ble transversely with relation to the main frame; means for v movmg said hub and shaft transversely rela tive to said main frame; a circular rack carried by said hub; and a plurality of toolshafts, having gears, carried by said toolcarrier and arranged to be driven from said circular rack when the tool-carrier is rotated.

17. In a tool-carriage for tooling lithographic surfaoes, the combination of a can bearings stationed on the main frame; and frame; a plurality of tool-carriages ar- 

